John Crawford
7Patents
5h-index
8Co-inventors
56Inventor score
Filing activity: Oct 17, 1983 → Jun 23, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4521825A | Gas ignition circuits | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US7348803B2 | Bi-directional bus buffer | Physics | 17 | Active |
| US5323062A | System for triac trigger control in combination with a sensing element | Physics | 12 | Expired |
| US5847367A | Circuit arrangement for controlling the temperature of a heating element | Physics | 7 | Expired |
| US4489263A | Electronic speed control circuits | Electricity | 7 | Expired |
| US7256371B2 | Temperature control method for positive temperature coefficient type heating element | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US7679291B2 | Barricade flasher | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.